Proofers' catches are errors that are found in written material after it has been published. The two most common types of proofers' catches are ERRATA and TYPOS. ERRATA is a Latin word meaning 'MISTAKE' and refers to errors in the content of a text, such as incorrect facts or figures. TYPOS are mistakes in spelling, grammar, punctuation, or formatting. Both ERRATA and TYPOS can be corrected by proofreaders before the material is published.